Biogeosciences
Biogeosciences
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Articles | Volume 19, issue 8
Articles | Volume 19, issue 8
https://doi.org/10.5194/bg-19-2295-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-2295-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 8
Research article
 | 
29 Apr 2022
Research article |  | 29 Apr 2022

Species richness and functional attributes of fish assemblages across a large-scale salinity gradient in shallow coastal areas

Birgit Koehler, Mårten Erlandsson, Martin Karlsson, and Lena Bergström

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Short summary
Understanding species richness patterns remains a challenge for biodiversity management. We estimated fish species richness over a coastal salinity gradient (3–32) with a method that allowed comparing data from various sources. Species richness was 3-fold higher at high vs. low salinity, and salinity influenced species’ habitat preference, mobility and feeding type. If climate change causes upper-layer freshening of the Baltic Sea, further shifts along the identified patterns may be expected.
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